University of Maine Cooperative Extension will offer a free workshop and demonstration about mechanical weed management 5:30–7:30 p.m. Sept. 1 at Crystal Springs Farm, 277 Pleasant Hill Road, Brunswick.  The workshop includes a tour of no-till tomato plantings, discussion about best practices for mechanical weed management, demonstrations of new tools and presentation of findings from read more UMaine Extension hosts weed management workshop Sept. 1